2018 Fairfield Challenger – Doubles
# 2018 Fairfield Challenger – Doubles

Luke Bambridge and David O'Hare were the defending champions but chose not to defend their title.

Sanchai Ratiwatana and Christopher Rungkat won the title after defeating Harri Heliövaara and Henri Laaksonen 6–0, $7–6^{(11–9)}$ in the final.

## Seeds

* Sanchai Ratiwatana / Christopher Rungkat (champions)
* Ruan Roelofse / John-Patrick Smith (quarterfinals)
* Evan King / Nathan Pasha (first round)
* Toshihide Matsui / Frederik Nielsen (first round)

## Draw

### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

| First round | First round | First round | First round | First round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1 | Sa Ratiwatana C Rungkat | 6 | 6 | | | | | | | | | | | | | | |
| | T Kokkinakis M Reid | 3 | 4 | | 1 | Sa Ratiwatana C Rungkat | 6 | 5 | [10] | | | | | | | | |
| Q | A Göransson A Siljeström | 6 | 2 | [6] | WC | H Johnson Y Johnson | 4 | 7 | [6] | | | | | | | | |
| WC | H Johnson Y Johnson | 4 | 6 | [10] | | | | | | 1 | Sa Ratiwatana C Rungkat | 6 | 6 | | | | |
| 3 | E King N Pasha | 3 | 5 | | | | | | | | M-A Hüsler S Verbeek | 4 | 4 | | | | |
| WC | JC Aragone M Krueger | 6 | 7 | | WC | JC Aragone M Krueger | 2 | 4 | | | | | | | | | |
| | M-A Hüsler S Verbeek | 6 | 6 | | | M-A Hüsler S Verbeek | 6 | 6 | | | | | | | | | |
| | H Hach Verdugo A Menéndez Maceiras | 4 | 4 | | | | | | | | | | | 1 | Sa Ratiwatana C Rungkat | 6 | $7^{11}$ |
| PR | L Harris D O'Brien | 5 | 4 | | | | | | | | | | | | H Heliövaara H Laaksonen | 0 | $6^9$ |
| | R Galloway R Maytín | 7 | 6 | | | R Galloway R Maytín | w/o | | | | | | | | | | |
| | A Lawson H Reese | 6 | $7^7$ | | | A Lawson H Reese | | | | | | | | | | | |
| 4 | T Matsui F Nielsen | 3 | $6^3$ | | | | | | | | R Galloway R Maytín | 5 | 4 | | | | |
| | H Heliövaara H Laaksonen | $7^7$ | $7^7$ | | | | | | | | H Heliövaara H Laaksonen | 7 | 6 | | | | |
| | R Gonzales N Lammons | $6^2$ | $6^2$ | | | H Heliövaara H Laaksonen | 3 | 6 | [10] | | | | | | | | |
| WC | D Nguyen M Seeberger | $7^7$ | 3 | [5] | 2 | R Roelofse J-P Smith | 6 | 2 | [7] | | | | | | | | |
| 2 | R Roelofse J-P Smith | $6^4$ | 6 | [10] | | | | | | | | | | | | | |
